Fish Idle 2: Underwater Mystery

Fish Idle 2: Underwater Mystery

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Achievements and tips
By Mactanius
List of all achievements and a few tips to get started.
   
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🏆 Achievements List
First Catch! – catch your first fish
Sailor’s Start – play for 10 minutes
Calm Waters – play for 100 minutes
Storm Chaser – play for 1,000 minutes
Mariner’s Journey – play for 10,000 minutes
Hidden Treasures – open your first chest
Chest Hoarder – open 100 Epic Chests
Treasure Hunter – open 10 Rare Chests
Legendary Collector – open 10,000 Arcane Chests
Mariner's Vault – open 1,000 Legendary Chests
Casting Beginner – reach level 4
Smooth Sailor – reach level 6
Seasoned Angler – reach level 8
Master Fisherman – reach level 10
Ocean Explorer – reach level 12
Legend of the Seas – reach level 14
Basic Artisan – craft a level 1 item
Adept Crafter – craft a level 2 item
Advanced Blacksmith – craft a level 3 item
Master Smith – craft a level 4 item
Elite Craftsman – craft a level 5 item
Legendary Artisan – craft a level 6 item
Grandmaster Craftsman – craft a level 7 item
Skilled Beginner – craft 10 level 1 items
Proficient Maker – craft 10 level 2 items
Expert Forger – craft 10 level 3 items
Seasoned Artisan – craft 10 level 4 items
Veteran Creator – craft 10 level 5 items
Mythical Smith – craft 10 level 6 items
Supreme Creator – craft 10 level 7 items
🐟 Getting Started
So, the first achievement will be given just for catching and selling your first fish. It’s simple:

First Catch! – catch your first fish

A small tip for starting the game:
Near the lighthouse where you sell fish, there’s a shop where you can exchange roe for money. I don’t recommend using it early on, since later you’ll need a lot of roe.
⏳ Achievements for Time Spent in the Game
Sailor’s Start – play for 10 minutes
Calm Waters – play for 100 minutes
Storm Chaser – play for 1,000 minutes (16.5 hours)
Mariner’s Journey – play for 10,000 minutes (166.6 hours)

These are actually the easiest achievements: you just need to AFK (be idle) – that’s it. But I recommend doing this after you unlock the bot station. Buy a few resource collectors, then just stand at a fish spawn point and you can go do other things.
🧳 Achievements for Opening Chests
Hidden Treasures – first chest (Common Chest)
Chest Hoarder – 100 Epic Chests
Treasure Hunter – 10 Rare Chests
Legendary Collector – 10,000 Arcane Chests
Mariner’s Vault – 1,000 Legendary Chests

There are two ways here: the first is to support the game and other players by buying chests on the marketplace (though this will cost quite a bit). The second way is to simply farm resources and complete daily quests that reward you with chests.
📈 Achievements for Leveling Up
Casting Beginner – reach level 4
Smooth Sailor – reach level 6
Seasoned Angler – reach level 8
Master Fisherman – reach level 10
Ocean Explorer – reach level 12
Legend of the Seas – reach level 14

Leveling is straightforward: sell fish and complete quests to gain experience. However, it takes time. You’ll probably hit level 6 around the same time you unlock the 1,000-minute achievement. So patience is key.
⚒️ Achievements for Crafting
Creating Items:
Basic Artisan – craft a level 1 item
Adept Crafter – craft a level 2 item
Advanced Blacksmith – craft a level 3 item
Master Smith – craft a level 4 item
Elite Craftsman – craft a level 5 item
Legendary Artisan – craft a level 6 item
Grandmaster Craftsman – craft a level 7 item

Mass Crafting:
Skilled Beginner – craft 10 level 1 items
Proficient Maker – craft 10 level 2 items
Expert Forger – craft 10 level 3 items
Seasoned Artisan – craft 10 level 4 items
Veteran Creator – craft 10 level 5 items
Mythical Smith – craft 10 level 6 items
Supreme Creator – craft 10 level 7 items

These are probably the hardest achievements in the game – crafting items. The challenge is finding the necessary components in chests in large quantities. Again, there are two approaches: either buy the needed resources on the marketplace or play and grind for chests. Essentially, crafting achievements and chest-opening achievements are interconnected because you can only get crafting materials from chests.
🚀 Tips
🎯 General Progress Tips

  • Don’t start submarine missions early; they’ll be more useful later.
  • Don’t upgrade mines for money – they’re not very effective
  • Invest in delivery bots, not fishing bots.
  • Priority upgrades:
  1. Number of fishing rods
  2. Group attack
  3. Fishing speed


🛒 Market Tips

  • On the black market, prioritize attack power and fishing speed.
  • On the green market, upgrade attack power first, then unlock the 250-fish pass. After that, you can farm indefinitely.

🐉 How to Defeat Bosses

  • Lure bosses back to the base.
  • Use delivery bots to heal at the base. This way you can safely kill almost any boss.

❄️ Farming in the Winter Biome

  • Farm golden fish in the east of the winter zone.
  • Priority upgrades on the ice market:
  1. Regeneration
  2. Fishing speed
  3. Increase winter coin income
  • Don’t upgrade ship heat capacity – it’s almost useless.

💡 Additional Tip
Try not to spend resources on secondary upgrades early in the game. Focus on what truly helps you progress faster.
4 Comments
danielkro1887 24 Jun @ 1:56am 
How are submarine missions more useful later?
Raúl 31 May @ 7:41am 
What are the best farming spots for fish roe and ice coins?
Eluvirgne 24 May @ 7:03pm 
nice guide thanks :)
VOID 15 May @ 3:28pm 
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